Improvement in log-turners



J. A. TRIPP & H. M. BALLOU.

; Log-Turner. I i No. 209,201. I Patented Oct. 22, 1878. 1

'M'fnemeaj [WI/64407935 @219 W n67 ginn n PETERS. PHOTO-UTHOGRAPHER.WASHINGTON 01c.

UNITED STATES PATENT QFFIGE.

JAMES A. TRIPP AND HARTWELL M. BALLOU, OF UNION CENTRE, N. Y.

IMPROVEMENT IN LOG-TURNERS.

Specification forming part of Letters Patent No. 209,201, dated October22, 1878; application filed May 1, 1878.

To all whom it may concern:

Be it known that we, JAMES A. TRIPP and HARTW'ELL M. BALLOU, of UnionCentre, Broome county, and State of New York, have invented a new anduseful Improvement in the Mode of Turning Logs for Slabbing inCircular-Saw Mills, of which the following is a specification, referencebeing had to the accompanying drawing.

Our invention consists of the employment of hinged roller-blocksprovided witha connecting rod for their simultaneous adjustment andanti-friction rollers, in combination with a suspended hook and'leverconnected with and operated by friction-rollers driven by the saw-shaft,in such a manner that said hook shall engage with the log on the sidebearing against the knee of the head-block, thereby turning the log fromsaid knee, instead of against it, and requiring but a quarter of arevolution to place it in position, instead of three-quarters, as by theordinary method.

Figure l in the accompanying drawing is a plan view of a deviceembodying our invention, showing the connected roller-blocks inposition. Fig. 2 isan end elevation, showing the process of turning thelog. Fig. 3 is a sectional view, representing one of the rollerblocksand part of the connecting-rod. Fig. 4 is a section of the saw-frames,showing the movement of the lever for operating them by the dottedlines.

A is the hook, which has a shank extending to the end of the lever B, towhich it is jointed. This joint is designed to be on a line with theknee to of the head-block on the logcarriage, so that as the log iselevated for turning by the hook it will gravitate against the knee toof the block, by means of the rollers b b, to its position.

The hook A is connected with the log by hand by means of the rope c,which is attached to across-piece over the work, also to the shank ofthe hook at c. From this connection said rope extends over a pulley, f.To the end of this rope is attached a weight, g, which, after the hookhas been detached from the log, draws it back to the position indicatedby the dotted lines, away from the movements of the log-carriage.

The fulcrum of the lever B is so placed as to insure the required powerto turn a log of the largest size. This lever is operated by a ropev orchain connection, h, which winds around the shaft i of theadjustablefrictionroller, one of the journals of which is movable, andworks in a slotted bearing, cl, in a projection upon the lever'O, asshown by Fig. 4 in the drawing. This lever is also operated by handbymeans of a cord, is, which is attached to the cross-piece over thework at d, passing over a pulley, l, and attached to the end of thelever. This cord is left slack between its attachment at d and itsbearing on the pulley Z, so that it maybe readily grasped by the handfor the movement of the lever.

D D are the friction-rollers, one of which is attached to the end of thesaw-shaft, and the other is arranged to engage with it, as beforedescribed.

E E are the roller-blocks, the faces of which incline toward the knee aof the head-block 011 the log-carriage. These inclined faces areprovided with anti-friction rollers b, and are hinged to the skids G,and have a connectionrod, F, by which they are operated by one motion,thereby greatly facilitating the work, while by the ordinary method theyare placed in position separately.

When we use our invention, the log is rolled over the skids G to itsposition against the knees a of the head-blocks. The slab is then sawedin the usual manner. The hook A is then attached to the opposite side ofthe log by means of the rope o with the hand. The roller-blocks are thenturned up to their position and the cord It brought to the requiredtension to engage the friction-rollers D D, which by their movement drawdown the end of the lever B, which, in connection with I the hook, turnsthe sawed face of the log onto the rollers b, and as the log is nowpartially suspended, it settles into its position for sawing the nextslab.

Having thus deseribedour invention, what we claim as new, and desire tosecure by Letters Patent, is-- 1. In combination with the roller-blocksE, the anti-friction rollers b and connection-rod F, as hereindescribed.

2. The combination of the hinged blocks E E, carrying the anti-frictionrollers b b, and the connection-rod F, with the pivoted lever 13,provided at its outer end with the hook A, the rope 71, friction-ro1lersD D, lever 0, carrying an arm having the slotted bearing d, the cord 0,and weight g, substantially as shown and described, for the purpose setforth.

JAMES A. TRIPP. HARTWELL M. BALLOU. Witnesses:

PERRY P. ROGERS, MosEs E. CoNKLIN.

